@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --paper: #f6f1e7;
  --paper-soft: #efe7d8;
  --surface: #fffdf8;
  --ink: #201c16;
  --ink-muted: #635c4e;
  --ink-faint: #8a8271;
  --accent: #24425f;
  --accent-strong: #16283a;
  --accent-wash: rgba(36, 66, 95, .08);
  --line: rgba(32, 28, 22, .14);
  --line-soft: rgba(32, 28, 22, .08);
  --shadow: rgba(32, 24, 12, .12);
  --nav-bg: rgba(246, 241, 231, 0.9);
  --nav-bg-solid: rgba(246, 241, 231, 0.98);
}

:root[data-theme="dark"] {
  --paper: #16140f;
  --paper-soft: #1d1b15;
  --surface: #211f18;
  --ink: #f1ece0;
  --ink-muted: #b7ae9c;
  --ink-faint: #837c6d;
  --accent: #6fa1cf;
  --accent-strong: #9cc3e6;
  --accent-wash: rgba(111, 161, 207, .12);
  --line: rgba(241, 236, 224, .14);
  --line-soft: rgba(241, 236, 224, .08);
  --shadow: rgba(0, 0, 0, .4);
  --nav-bg: rgba(22, 20, 15, 0.85);
  --nav-bg-solid: rgba(22, 20, 15, 0.97);
}

*, *::before, *::after {
  box-sizing: border-box;
}
.first-link{
  margin-left:10px;

}
body, html {
  width: 100%;
  margin: 0;
  padding: 0;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  background: var(--paper);
  color: var(--ink);
  transition: background 0.25s ease, color 0.25s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Newsreader', Georgia, serif;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-weight: 600;
  text-wrap: balance;
}

p {
  color: var(--ink-muted);
  line-height: 1.7;
}

a {
  color: var(--accent);
}

::selection {
  background: var(--accent);
  color: var(--paper);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--paper);
  padding: 10px 18px;
  z-index: 2000;
  border-radius: 0 0 8px 0;
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  left: 0;
}

/* ── Navigation ── */
.navbar-custom {
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 24px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-brand-text {
  font-family: 'Newsreader', Georgia, serif;
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.01em;
  white-space: nowrap;
  transform: translateY(3px);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}

.navbar-logo {
  height: 55px;
  width: 55px;
  object-fit: contain;
}

/* ── Theme-aware logo swap ── */
.theme-logo-dark {
  display: none;
}

:root[data-theme="dark"] .theme-logo-light {
  display: none;
}

:root[data-theme="dark"] .theme-logo-dark {
  display: block;
}

.nav-link-custom {
  font-weight: 500;
  color: var(--ink-muted);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
  font-size: 0.92rem;
}

.nav-link-custom:hover,
.nav-link-custom.active {
  color: var(--ink);
  background: var(--accent-wash);
}

.nav-subscribe-btn {
  font-weight: 600;
  color: var(--paper) !important;
  background: var(--accent);
  padding: 8px 18px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.88rem;
  transition: background 0.2s, transform 0.15s;
  display: inline-flex;
  align-items: center;
  margin-left: 6px;
}

.nav-subscribe-btn:hover {
  background: var(--accent-strong);
}

/* ── Theme toggle ── */
.nav-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-right .nav-menu {
  order: 1;
}

.nav-right .lang-toggle-btn {
  order: 2;
}

.nav-right .theme-toggle-btn {
  order: 3;
}

.nav-right .nav-hamburger {
  order: 4;
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.theme-toggle-btn:hover {
  color: var(--ink);
  border-color: var(--ink-faint);
  background: var(--paper-soft);
}

.lang-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 10px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-muted);
  cursor: pointer;
  flex-shrink: 0;
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.lang-toggle-btn:hover {
  color: var(--ink);
  border-color: var(--ink-faint);
  background: var(--paper-soft);
}

.theme-toggle-btn svg {
  width: 18px;
  height: 18px;
}

.theme-toggle-btn .icon-moon {
  display: none;
}

:root[data-theme="dark"] .theme-toggle-btn .icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle-btn .icon-moon {
  display: block;
}

/* ── Layout ── */
.section {
  padding: 96px 20px;
}

.divider {
  border: 0;
  height: 1px;
  background: var(--line);
  width: 100%;
  margin: 0;
}

/* ── Eyebrow ── */
.eyebrow {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

/* ── Hero ── */
.hero {
  padding: 84px 20px 56px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.3rem, 5.6vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin-bottom: 22px;
}

.hero > p {
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto 36px;
  color: var(--ink-muted);
}

/* ── Trust strip ── */
.trust-strip {
  max-width: 720px;
  margin: 44px auto 0;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.trust-strip-label {
  font-size: 0.78rem;
  color: var(--ink-faint);
}

.tech-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.tech-chip {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--ink-muted);
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 5px 12px;
  border-radius: 4px;
}

.paper-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.paper-link:hover {
  border-bottom-color: var(--accent);
}

/* ── Buttons ── */
.btn-primary-custom {
  height: 50px;
  padding: 0 26px;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--paper);
  font-size: 0.95rem;
  border: 1px solid var(--accent);
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
}

.btn-primary-custom:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: var(--paper);
  transform: translateY(-1px);
}

.btn-secondary-custom {
  height: 50px;
  padding: 0 26px;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--surface);
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s, border-color .2s, transform 0.15s;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
}

.btn-secondary-custom:hover {
  background: var(--paper-soft);
  border-color: var(--ink-faint);
  color: var(--ink);
  transform: translateY(-1px);
}

/* ── Cards ── */
.card-custom {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  height: 100%;
}

.card-number {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.card-custom h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
}

/* ── Section typography ── */
.section-title {
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  font-weight: 600;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.02rem;
  max-width: 580px;
  margin: 0 auto 56px;
}

/* ── Verification flow diagram ── */
.flow-diagram {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  align-items: stretch;
  max-width: 1160px;
  margin: 0 auto;
}

.flow-step {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  padding: 0 22px 0 0;
}

.flow-step:not(:first-child) {
  padding-left: 22px;
  border-left: 1px dashed var(--line);
}

.flow-step-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--accent);
  background: var(--surface);
  flex-shrink: 0;
}

.flow-step-icon svg {
  width: 22px;
  height: 22px;
}

.flow-step-index {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.flow-step h3 {
  font-size: 1.08rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.flow-step p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--ink-muted);
}

@media (max-width: 1000px) {
  .flow-diagram {
    grid-template-columns: 1fr;
    gap: 32px;
    max-width: 480px;
  }

  .flow-step:not(:first-child) {
    padding-left: 0;
    padding-top: 28px;
    border-left: none;
    border-top: 1px dashed var(--line);
  }
}

/* ── Trust / tech spec section ── */
.trust-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
  text-align: left;
}

.trust-panel {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  padding: 32px;
}

.trust-panel h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.spec-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 0.9rem;
}

.spec-list li:first-child {
  border-top: none;
}

.spec-key {
  color: var(--ink-muted);
}

.spec-val {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--ink);
  text-align: right;
  font-size: 0.85rem;
}

.trust-note {
  font-size: 0.88rem;
  color: var(--ink-muted);
  margin-top: 10px;
  margin-bottom: 0;
}

.trust-links {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 4px;
}

.trust-link-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  transition: border-color .2s, background .2s;
}

.trust-link-item:hover {
  border-color: var(--accent);
  background: var(--accent-wash);
}

.trust-link-item svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.trust-link-title {
  font-weight: 600;
  color: var(--ink);
  font-size: 0.95rem;
  display: block;
  margin-bottom: 2px;
}

.trust-link-sub {
  font-size: 0.82rem;
  color: var(--ink-muted);
  display: block;
}

@media (max-width: 800px) {
  .trust-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Architecture diagram ── */
.arch-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 20px 50px var(--shadow);
}

.arch-img {
  width: 100%;
  height: auto;
  max-height: 700px;
  object-fit: contain;
  display: block;
  border-radius: 6px;
}

.arch-img-dark {
  display: none;
}

:root[data-theme="dark"] .arch-img-light {
  display: none;
}

:root[data-theme="dark"] .arch-img-dark {
  display: block;
}

.arch-caption {
  color: var(--ink-faint);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  margin-top: 16px;
  margin-bottom: 0;
  text-align: left;
}

/* ── Subscribe CTA section ── */
.cta-section {
  text-align: center;
  padding: 96px 20px;
  background: var(--paper-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cta-section h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 600;
  margin-bottom: 16px;
}

/* ── Demo section ── */
.demo-badge {
  display: inline-block;
  background: var(--accent-wash);
  color: var(--accent);
  border: 1px solid rgba(36, 66, 95, .25);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 4px;
  margin-bottom: 14px;
}

.demo-feature-list {
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.demo-feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.demo-feature-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.demo-feature-icon svg {
  width: 100%;
  height: 100%;
}

.demo-feature-item span:last-child {
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.demo-note {
  font-size: 0.85rem;
  color: var(--ink-faint);
  font-style: italic;
}

.demo-video-frame {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: 0 20px 50px var(--shadow);
  display: flex;
  justify-content: center;
  padding: 16px;
}

.demo-video-frame video {
  border-radius: 6px;
  max-width: 100%;
  max-height: 560px;
}

/* ── Team ── */
.team-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.member-avatar {
  width: 76px;
  height: 76px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Newsreader', Georgia, serif;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
  flex-shrink: 0;
  color: #f6f1e7;
}

.avatar-sky    { background: #3d5a73; }
.avatar-purple { background: #5b4e63; }
.avatar-teal   { background: #3c6660; }
.avatar-indigo { background: #454f73; }
.avatar-emerald{ background: #3f6b53; }
.avatar-orange { background: #8a5a3a; }
.avatar-rose   { background: #7a4a52; }
.avatar-amber  { background: #83702f; }

.member-name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.member-role {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.member-bio {
  font-size: 0.875rem;
  color: var(--ink-muted);
  line-height: 1.65;
  margin-bottom: 18px;
  flex: 1;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 6px;
  justify-content: center;
  margin-top: auto;
}

.skill-tag {
  font-size: 0.72rem;
  font-weight: 500;
  line-height: 1;
  padding: 5px 12px;
  border-radius: 4px;
  background: var(--accent-wash);
  border: 1px solid rgba(36, 66, 95, .2);
  color: var(--accent);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.team-photo {
  border-radius: 10px;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  box-shadow: 0 20px 50px var(--shadow);
}

/* ── Subscribe page ── */
.subscribe-hero {
  padding: 96px 0 64px;
  text-align: center;
}

.subscribe-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 600;
}

.subscribe-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 48px 40px;
  max-width: 540px;
  margin: 0 auto;
  box-shadow: 0 20px 50px var(--shadow);
}

.subscribe-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  display: block;
  margin-bottom: 6px;
}

.subscribe-input {
  border: 1.5px solid var(--line);
  border-radius: 6px;
  padding: 12px 16px;
  font-size: 1rem;
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
}

.subscribe-input::placeholder {
  color: var(--ink-faint);
}

.subscribe-input:focus {
  border-color: var(--accent);
}

.subscribe-btn {
  height: 50px;
  background: var(--accent);
  color: var(--paper);
  border: none;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  width: 100%;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  letter-spacing: 0.01em;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
}

.subscribe-btn:hover {
  background: var(--accent-strong);
}

.subscribe-btn:active {
  transform: scale(0.98);
}

.subscribe-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.success-box {
  display: none;
  background: rgba(63, 107, 83, .1);
  border: 1.5px solid rgba(63, 107, 83, .3);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  color: #2f5641;
  font-weight: 600;
}

:root[data-theme="dark"] .success-box {
  color: #8fd6ab;
}

:root[data-theme="dark"] .error-msg {
  color: #e28080;
}

.error-msg {
  display: none;
  color: #a13a3a;
  font-size: 0.85rem;
  margin-top: 4px;
}

.privacy-note {
  font-size: 0.78rem;
  color: var(--ink-faint);
  text-align: center;
  margin-top: 16px;
}

.perks {
  max-width: 700px;
  margin: 48px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.perk-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.perk-icon {
  width: 22px;
  height: 22px;
  color: var(--accent);
}

.perk-icon svg {
  width: 100%;
  height: 100%;
}

.perk-text strong {
  display: block;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
  font-size: 0.9rem;
}

.perk-text span {
  color: var(--ink-muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

@media (max-width: 600px) {
  .perks {
    grid-template-columns: 1fr;
  }
}

.role-btn {
  font-size: 0.85rem;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: 20px;
  border: 1px solid var(--line);
  color: var(--ink-muted);
  background: transparent;
  cursor: pointer;
  transition: all 0.18s;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
}

.role-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-wash);
}

.role-btn.active {
  background: var(--accent-wash);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Footer ── */
footer {
  background: var(--paper-soft);
  border-top: 1px solid var(--line);
  padding: 40px 20px;
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 18px;
}

.footer-logo {
  height: 90px;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--ink-muted);
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
}

.footer-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--ink);
}

.footer-legal {
  display: flex;
  gap: 16px;
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin: 0;
}

/* ── Hamburger ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Responsive ── */
@media (max-width: 1040px) {
  .nav-hamburger {
    display: flex;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    align-items: center;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--nav-bg-solid);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
    padding: 12px 16px 16px;
    gap: 4px;
    z-index: 999;
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-link-custom {
    padding: 10px 16px;
    width: 100%;
    text-align: center;
  }

  .nav-subscribe-btn {
    margin-top: 4px;
  }

  .hero {
    padding: 72px 20px 56px;
  }

  .section {
    padding: 64px 20px;
  }

  .subscribe-card {
    padding: 32px 20px;
    margin: 0 16px;
  }

  .cta-section {
    padding: 64px 20px;
  }

  .subscribe-hero {
    padding: 64px 0 40px;
  }

  .arch-panel {
    padding: 18px;
  }
}